Gas-fixture.



J. W. LANGENDORFER.

v GAS FIXTURE.

APPLIOATIOH FILED APB.14,1911.

Patented May 14, 1912.

Wotan untransnares- PATENT crates.

JOHN W. 'LANGENDOREER,;OF PHILADELPHIA. PENNSYLVANIA:

ens-rm'runn.

" Y r Specification of Letters Patent. Patentd Ma 14, 1912.

Application filed April 14,'1911. Serial No. 621,041.

Toj all it m concern: I means for locking said key. Fig. 6, a plan Be itknown that 1, JOHN XV. L'ANGEN View of said key. Fig. 7, a plan view ofa nonrnn, a citizen of the United States, rekey showing the stop on themedial line.

siding. at Philadelphia; in th'e county of a In carrying out myinvention as here em- Plnladelphia' and State of Pennsylvania, bodied, Arepresents'a gas fixture in which.

. have invented a certain new and useful.1mis mounted a key B, having atransverse .provement '1n Gas-F xtures, of wlnch the folopenmgCthrough'which the gas flows, and

lowingis a specification q a longitudinal opening "D leading from the Myvinvention relates tonew and useful end of the key into thetrans'verseopening, .5

.i-niprovenients ingasfixtin'es, and has for its the outeriend of thelongitudinal opening ob ect to so eo1 1struc t a key for gas'fixturesbelng threaded as at E, for th'e'reception of as to provide the. formerWllllfl stop which the screw'F which carries 'wire or win G.

will co-act with a pin. carried bythe-body The end of said wire afterentering the of the fixture,thusovercoming the necestransverse Openingthrough the longitu- 7 sity of. having to, cut away a portion of thedinal opening D is bent over ap iiroximately gas fixture-body in orderto produce a stop at'r'lght angles by a rod or other instrument whichwould co-act by a pin carried with the which is inserted through theopening H of v the gas fixture, into the transverse opening Anotherobject of the invention is to pro- C in the key. After the end of thiswire has vide the key screw with a short pin or wire been bent over, thescrew F cannot accidenwhich will registeri with the longitudinal tallywork loosefrom any cause. In Fig. 1 l openingin the end of the keyleading to the have also shown one form of resilient means transverseopening,throughiwhich the gas for holding the key in its closed positionkey.

,fiows. The wire carried by the screw must which will ordinarily preventsaid key from so beof suthclent length to lead nto the transbeing arredopen or even opened by a light verse opening and when the screw is 1naccidental touch. In this form of resilient place this wire isbent'atrightangles by nieans I employ a small coiledspi'ing I inserting'aninstrument lnto the transverse held in place by a screw J which passes7. opening while the gascock is opened. When through said spring andthreaded into the wire is bent in this manner the keyscrew the body ofthe fixture, and this spring 18 cannot accidentally-work loose. providedwith anextension K. This cxten I A. further object of [the invention isto 'sion lies at an angle to the body of the screw provide resilientmeans for holding the key and rests upon the inner face of .the collarin a predetermined position; I L carried by the-key, said-collar havinga With these ends in View, this invention flange M, the edge of whichlies flush with a consists in the details of construction'and' secondarycollar N, said secondary collar combination of elements hereinafter sethaving a cut-away portion to produce' the forth and then specificallydesignated by opening 0 and forming shoulders Pwhich' .the claims act asstops and contact with the. screw J to In order that those skilled inthe artto limit the inovementsef the key; In the col- I which thisinvention appertains may under-1 lar L is also formed a perforation Qinto stand how to make and use the same, I will which theexten'slonK ofthe spring I will describe its construction in detail, referring enterwhen the keyis turned to its closed. by letter to the accompanyingdrawlng position, thus preyentingt-ie key from being formin a art ofthis s ecification in turned b an accidental"movement or it a P IWhlCl'l a brat-ion. From this-description it will be Figure 1, is asectional side elevation of a seen that when the key 15 Closed one 01-the fixture made in accordance with my imshoulders P will be in contactwith-the 'provement, it here being shown as being LP- sctew J,wh1le'theextension K Will be rest plied to an-independent-gas cock. Fig. 2, 'ingin the perforation Q1 and this spring a plan View of a key. Fig. '3, aside elevawill be sufiieient-ly strong to prevent the action of a gas:fixture showing the key in seccidental turning of the key, but saidl\'(- tion to plainly show the relation of the re may ,be readily turnedas 11] the ordnmry silient member thereto. Fig. 4, a plan view fixtureand when the key. is opened the op- 11o of the key. Fig. 5, a sectionalside elevation posit'e shoulder P will be in contact with the r of akeyzshowing another-form of resihent screw J. ThlS constructionovercomes the necessity of cutting away the body of the gzs-fizgture toproduce shoulders which would engaged by a pin on .thekey.

In Figs. 3 and 4 I have shown a slightly modified form ofreSilient-meansfor hold ting the key closed, in which a coiled spring I'tis inserted inthe space formed between the collars L and.N, oi1e:,end resting againstTthe shouldersP I In thisconstruction, when the key is opened of. thespring in a fiat metallic spring. 30

A I the key sect on 1n tendency to close the key, the key i'n'its seatwill overcomethe strengththis respect, but when said .of'thekey; InFigs. 5 and 6' I have showna still furture.

turned until the pin J comes in contact with one of the shoulders P, atwhich timean integral portion of the key while the op- 10 positeendrests againsta Ypin' J carriediby thebody ofthe gas fixture, said inentering the spacebetween the collars t rough the out-'awayportion O.The pin J is. shown in Fig. 4 to more clearly illustrate its'relation tothe spring.- 'While thispin is one of theabutmentsto one end of thespring I it also operates in conjunction with to form stops'for the key.

the spring I will be compressed, having a but the friction of fiicientprevent the accidental opening key is closed said spring isof. sustrength to ther modified form of my invention in which I is securedatits cen- R to the outside of the Said flange tral point by a screwflange M.

to its ends and being of suflie cient length to pass throughthethickness e, permitting them to come in contactwit .the' pin J," carriedby :the fix- When the key is opened it wil l be one of the teats T willbe ridden over the pin and passed behind said pinto prevent from beingaccidentally turned.

having apertures S through-which pass the teats '1, said teats .beingarranged from thebody of the spring.

in proximity take place with the opposite shoulder and the opposite-endof the spring.

In Fig. 7 I=.have shown a key in which the out-away p'ortionO isapproximately one-half of the collar N, thereby shoulders P on themedial. line w ich would permit the key to be turned halfway aroundinsteadof'on'e fourth as shown in the other vlews.

.- Havinwhat I claim as new and useful, is

,1. In combination a'gas fixture having a key seat, a key co-acting withthe key seat, acollar having a flange formedthereWith,

a' secondary collar having a-portion cutaway v to produce shoulders, 1said collar also-rarflush with the ried by the key and. lying flange ofthe first named collar, a pin carried means carried by the pin and thefirst named collar for holding against accidental opening. f

In testimony whereof, I aflixed my signaturein' subscribing nesses.

J OH IJANGENDORFER. Witnessesp v I "Enw. W. Ans'r'm,

the. key

with for holding ,the key closedhave hereunto. the presence-of two Whenthe key i s'closed the same action will lacing the thus fully-describedmy .invention, i

ng a perforation therein, :1

the first named collar, a

by the-body of the fixture, and resilientco ncting with

